SOCIAL CONVENTIONS

The Angelic Choir is as follows: 
Seraphim 
Cherubim 
Thrones 
Dominions 
Virtues 
Powers 
Principalities 
Archangels 
Angels 

Obviously, the amount of angels within each rank increases as one goes down the list.  An angel's class is determined by several factors, although the first attribute examined is the wings.  Seraphim have six.  Cherubim have four, but they also have eyes all over their wings.  Thrones have four plain wings.  Cadmiel and Tialiel are both thrones.  Most angels are required to enlist in the angelic military, although the highest positions usually go to thrones (Cadmiel is a General--Tialiel is a lieutenant, although he could be a general if he were more fond of fighting), being that they are trained from birth to be in the military (dispensing justice is part of their job description).  Seraphim are the only class excluded from this rule, although they will join in a battle if necessary. 

Every Sunday, angels are expected (not really required, but to not do so is severely frowned on) to spend at least one hour singing. Seraphim usually sing all day, beginning at midnight and continuing for the next 24 hours.  Metatron is the only Seraphim excluded, being that he hasn't got a voice. 

Heaven is divided into two districts, one residential, one business.  The business district is lined with enormous, tall, non-descript white buildings, and the residential district actually looks much the same.  The main difference between the two is that the windows in the
residential district might have nice curtains on them or something. 

As stated, many angels serve in the military, fighting holy wars, so this is the occupation of a good chunk of the population.  The others serve in a variety of positions: some are involved with watching and caring for living humans (these are guardian angels), some
are involved with monitoring the personal heavens of dead souls, and some are involved in the maintenance of the society. Maintenance can mean anything from policing rebellious angels to simply keeping everything white. 

'Unemployment' doesn't really exist, but the hierarchy restricts certain classifications from certain positions.  But angels are often just naturally more inclined to want to do one thing or another, i.e., most thrones just want to be part of the military.  The society is led by the Seraphim, with Metatron being the most important since he has the most direct link to God.  But the police do a good job of making sure that the Seraphim don't have to interfere very much. 

God is, naturally, the most important force in Heaven, but He is too much for even angels to comprehend.  Thus access to Him is extremely limited (like the rest of angelic society XB).  Essentially, God is a telephone in an office that is always locked.  The door will only unlock for a very good reason, but as you may be able to tell this puts God at a limited capacity.  Hence Metatron, the only angel able to handle His Divine Presence. 

It's a heavily regulated (thanks to the Law of Predetermination) and organized society and place, and things seem to run rather efficiently.  But lately turmoil has been increasing...